UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 18 OCT 25 Station: VVTS WMO ident: 48900 Latitude: 10.82 Longitude: 106.67 Elevation: 19.00 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- SFC 1009 19 27.4 23.9 81 3.5 24.8 330 1 299.8 303.2 297.7 354.9 18.82 1 1000 77 26.0 23.0 84 3.0 23.8 330 3 299.1 302.4 297.0 351.6 17.96 2 994 130 25.4 22.4 83 3.0 23.2 339 4 299.1 302.2 296.6 349.9 17.41 3 968 364 24.8 21.9 84 2.9 22.7 18 6 300.7 303.9 297.0 351.7 17.34 4 964 401 25.2 21.8 81 3.4 22.8 24 7 301.5 304.7 297.2 352.5 17.30 5 948 548 25.0 19.0 69 6.0 20.8 49 8 302.7 305.5 295.8 346.4 14.74 6 925 764 23.2 19.7 81 3.5 20.7 85 11 303.0 305.9 296.6 349.9 15.81 7 850 1498 18.0 17.0 94 1.0 17.3 90 15 305.0 307.7 296.3 348.3 14.49 8 842 1579 17.2 16.5 96 0.7 16.7 90 15 305.0 307.6 296.0 347.3 14.17 9 713 2988 10.6 8.5 87 2.1 9.3 95 13 312.6 314.4 295.0 342.9 9.82 10 700 3142 9.8 6.9 82 2.9 8.0 95 13 313.3 315.0 294.6 341.1 8.96 11 689 3274 9.8 2.8 62 7.0 5.8 94 13 314.8 316.1 293.3 336.2 6.81 12 676 3432 9.0 3.0 66 6.0 5.5 93 13 315.6 316.9 293.7 337.8 7.04 13 659 3643 7.2 5.3 88 1.9 6.1 91 12 315.9 317.5 294.9 342.6 8.51 14 616 4196 3.8 1.0 82 2.8 2.2 87 11 318.1 319.4 294.2 339.4 6.70 15 611 4263 4.0 -4.0 56 8.0 -0.0 87 11 319.1 320.0 292.8 334.1 4.66 16 598 4438 3.2 -1.3 72 4.5 0.8 86 11 320.1 321.3 294.0 338.9 5.83 17 580 4685 2.2 -10.8 38 13.0 -3.4 84 11 321.8 322.3 292.1 331.4 2.89 18 561 4954 0.0 -2.8 81 2.8 -1.4 82 10 322.3 323.3 294.4 340.3 5.56 19 527 5454 -2.7 -12.7 46 10.0 -6.8 78 10 324.8 325.4 292.8 334.1 2.73 20 511 5698 -4.3 -7.7 77 3.4 -5.9 76 9 325.8 326.6 294.3 339.7 4.20 21 509 5729 -4.3 -12.3 54 8.0 -7.6 76 9 326.1 326.7 293.3 336.0 2.92 22 507 5760 -4.3 -9.3 68 5.0 -6.5 76 9 326.5 327.2 294.1 339.0 3.73 23 500 5870 -4.7 -10.7 63 6.0 -7.3 75 9 327.3 328.0 294.0 338.7 3.38 24 474 6289 -6.3 -17.3 41 11.0 -10.4 61 9 330.4 330.8 293.7 337.6 2.08 25 470 6356 -6.7 -12.7 62 6.0 -9.2 58 8 330.7 331.3 294.6 341.2 3.07 26 446 6764 -8.5 -25.5 24 17.0 -13.5 44 8 333.4 333.6 293.6 337.3 1.08 27 443 6816 -8.7 -25.7 24 17.0 -13.7 42 8 333.8 334.0 293.7 337.7 1.06 28 419 7246 -12.1 -15.4 76 3.3 -13.3 27 7 334.8 335.4 295.4 344.4 2.76 29 406 7487 -13.1 -22.1 47 9.0 -15.9 19 7 336.5 336.9 294.8 342.3 1.60 30 400 7600 -14.1 -18.6 69 4.5 -15.7 15 7 336.7 337.1 295.4 344.5 2.20 31 393 7734 -15.5 -18.8 76 3.3 -16.6 17 7 336.5 337.0 295.4 344.4 2.21 32 366 8267 -19.3 -21.5 83 2.2 -20.0 27 8 338.4 338.8 295.6 345.2 1.87 33 333 8964 -23.1 -29.1 58 6.0 -24.5 40 10 342.5 342.7 295.8 346.4 1.03 34 308 9531 -27.5 -32.5 62 5.0 -28.5 51 11 344.0 344.2 296.0 347.1 0.81 35 300 9720 -29.1 -34.1 62 5.0 -30.0 55 11 344.4 344.5 296.0 347.1 0.71 36 288 10009 -31.7 -35.0 73 3.3 -32.2 52 10 344.7 344.8 296.0 347.3 0.68 37 275 10332 -33.7 -38.4 63 4.7 -34.3 48 8 346.4 346.5 296.3 348.4 0.50 38 250 10990 -39.1 -43.1 66 4.0 -39.5 40 5 347.9 348.0 296.5 349.3 0.34 39 241 11240 -41.3 -44.1 74 2.8 -41.6 28 7 348.3 348.4 296.5 349.6 0.32 40 200 12480 -51.5 -56.5 55 5.0 -51.7 325 17 351.2 351.2 297.0 351.6 0.09 41 194 12677 -53.3 -60.3 42 7.0 -53.5 329 17 351.4 351.4 297.0 351.7 0.06 42 171 13477 -60.7 -64.6 60 3.9 -60.7 347 16 352.1 352.1 297.1 352.2 0.04 43 162 13812 -63.5 -66.4 68 2.9 -63.6 354 16 352.8 352.8 297.3 353.0 0.03 44 150 14280 -67.7 -72.0 54 4.3 -67.7 5 15 353.5 353.5 297.4 353.5 0.02 45 146 14442 -69.1 -73.3 54 4.2 -69.1 4 14 353.8 353.8 297.4 353.8 0.01 46 138 14775 -71.5 -79.5 29 8.0 -71.5 0 13 355.3 355.3 297.8 355.3 0.01 47 120 15585 -77.7 -81.9 51 4.2 -77.7 353 9 358.4 358.4 298.4 358.4 0.00 48 104 16391 -82.9 -86.5 53 3.6 -82.9 345 5 363.5 363.5 299.4 363.5 0.00 49 100 16610 -81.5 -85.4 51 3.9 -81.5 50 15 370.3 370.3 300.6 370.3 0.00 TRP 104 16391 -82.9 -86.5 53 3.6 -82.9 345 5 363.5 363.5 299.4 363.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5793.00 m Freezing level: 561.00 mb = 4954.10 m = 16253.41 ft Wetbulb zero: 611.08 mb = 4261.38 m = 13980.73 ft Precipitable water: 2.31 inches Sfc-500 mean rel hum: 78.10 % Est. max temperature: 32.39 C = 90.31 F Sfc-Lift cond lev (LCL): 959.47 mb = 442.05 m = 1450.28 ft T: 25.14 C 700-500 lapse rate: 5.32 C/km ThetaE index: 13.72 C Layer 850.0- 676.0 mb Conv cond level (CCL): 869.19 mb = 1304.21 m = 4278.86 ft Mean mixing ratio: 16.48 g/kg Conv temperature: 32.12 C = 89.82 F Cap Strength: 1.94 C Lifted Index: -1.79 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.76 C Lifted Index @700 mb: -0.83 C Showalter Index: -1.15 C Risk: Thunderstorms probable Total Totals Index: 44.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.70 C Cross Totals Index: 21.70 C K Index: 36.80 Risk: > 80 % chance of thunderstorms Sweat Index: 243.00 Risk: None Energy Index: -1.91 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 369.42 J/kg Max Up Vert Vel: 27.18 m/s Conv Inhibition (B-): 43.28 J/kg Cap Strength: 1.94 C Lift Cond Lev (LCL): 907.80 mb = 926.93 m = 3041.06 ft Lev Free Conv (LFC): 842.80 mb = 1571.04 m = 5154.28 ft Equ Level (EL): 232.80 mb = 11470.51 m = 37632.44 ft B at Equ Level: 367.80 J/kg Max Parcel Lev (MPL): 122.80 mb = 15451.56 m = 50693.48 ft Wind level data Storm motion: 118 at 9 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 1009 19 330 1 0.5 -0.9 | 301 9 8.1 -4.8 1 1000 77 330 3 1.5 -2.6 | 306 11 9.1 -6.6 2 925 764 85 11 -11.0 -1.0 | 34 6 -3.3 -4.9 3 850 1498 90 15 -15.0 0.0 | 62 8 -7.4 -4.0 4 700 3142 95 13 -13.0 1.1 | 62 6 -5.3 -2.8 5 500 5870 75 9 -8.7 -2.3 | 10 6 -1.1 -6.3 6 400 7600 15 7 -1.8 -6.8 | 332 12 5.8 -10.7 7 300 9720 55 11 -9.0 -6.3 | 8 10 -1.4 -10.3 8 250 10990 40 5 -3.2 -3.8 | 331 9 4.4 -7.8 9 200 12480 325 17 9.8 -13.9 | 316 25 17.4 -17.9 10 150 14280 5 15 -1.3 -14.9 | 342 20 6.3 -18.9 11 104 16391 345 5 1.3 -4.8 | 315 13 8.9 -8.8 12 100 16610 50 15 -11.5 -9.6 | 16 14 -3.9 -13.6 Wind Parameters Mean winds (0-6000m): 87.6 at 11.4 knts Storm direction: 117.6 at 8.6 knts Shear (0-3000m) pos: 2.4 neg: 0.0 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 121.2 deg Storm rel helicity (0-3000m) pos: 46.8 neg: -0.0 tot: 46.8 m^2/s^2 ave: 15.6 10^-3 m/s^2 rel: 0.78 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 3.3 10^-3/s Energy-Hel index: 0.11 Bulk Rich Number: 25.95 Bulk Shear: 14.23 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 23 5 327 10| 8.2 0.0 8.2| 27.4 0.0 27.4 54.8 0.87| 11.1 9.6 1000 76 8 359 6| 6.6 0.0 6.6| 42.5 0.0 42.5 42.5 0.86| 10.0 8.7 1500 83 10 22 6| 5.3 0.0 5.3| 46.7 0.0 46.7 31.1 0.85| 7.6 6.5 2000 85 11 34 6| 3.8 0.0 3.8| 46.8 0.0 46.8 23.4 0.83| 5.9 4.9 2500 87 12 41 6| 2.9 0.0 2.9| 46.8 0.0 46.8 18.7 0.80| 4.9 3.9 3000 89 12 45 6| 2.4 0.0 2.4| 46.8 -0.0 46.8 15.6 0.78| 4.2 3.3 4000 90 12 48 6| 1.8 0.3 2.0| 46.8 -3.0 43.8 10.9 0.65| 3.4 2.2 5000 89 12 45 6| 1.4 0.4 1.8| 46.8 -6.2 40.6 8.1 0.53| 2.9 1.6 6000 88 11 41 6| 1.2 0.5 1.7| 46.8 -9.7 37.1 6.2 0.42| 2.6 1.1 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251018.00.gif